Edwabd douglas



(No Model.)

E. DOUGLAS.

TELESGOPIG STOP 000K EOE WATER SERVICE. 110.386,115. Patented Ju1y 17, 1888.

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@w114/Loewe UNITED STATES .PATENT OFFICEe EDV/'ARD DOUGLAS, OF MIDDLETO'WN, CONNECTICUT, ASSIGNOR TO W. AND B. DOUGLAS, OF SAME PLACE.

TELESCOPIC STOP-COCK FOR WATER-SERVICE.

SPECIFICATION forming part 0I' Letters Patent No. 386,115, dated July 17` 1888.

(No model.)

To @ZZ whom it 71mg/ concern.-

Be it known that I, EDWARD DOUGLAS, of Middletown, in the county of Middlesex and State of Conneeticut,have invented certain new and useful Improvements in Telescopic Stop- Coeks for Tater-Service; and I do hereby declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same.

Hy invention relates to an improvement in adjustable stop-cock boxes for water and gas service.

One object in view is to provide a simple and inexpensive stop-cock box which willadmit of lengthwise adjustment to suit different depths of location of a gas or water service pipe to protect the vertical stop-eocl keyrod.

A further object is to construct a telescopic metal stop-cock box for the protection of the operating rod of a stop-cock which will adA mit ofan extension lengthwise within its range, and that by its form of construction will allow a fiat cap to be attached by its screw-threaded boss to the top end of the stop-box and be disconnected at will.

XVith these ends in view my invention consists in certain features of construction and combinations of parts, that will be more fully described in the specication, and pointed out in the claims.

Referring to the drawings, Figure lis a side elevation in section of the complete box. Fig. 2 is a cross-section of the two portions of the telescopic box, taken on the line e m, Fig. l.

In adjustable stop-boxes employed to cover and protect the key-rod of a water or gas stopcock, which controls the flow of these tluids from a street main into a building, it is neces sary that provision be made to attach a cap to the top of the tubular box to prevent dirt from entering it, and also an improper tampering with the key-rod, which is the evident function of the box. Various means have been devised to accomplish the sure but removable attachment of a stop-box cover tc a telescopic stop-box, the most simple and reliable being a cap-plate provided with a screw-threaded boss or integral fcrrnle, which is made to depend from the lower side of the cap-plate to engage the threaded top end of a movable section of the telescopic stop-box.

It is evident that there must be a means provided to lock the upper section of the stopbox Vfrom rotation while it is allowed to slide, and to accomplish this in a simple and effectv ual manner is the chief feature of my present invention. I will now proceed to explain the means by which I effect this desideratum.

A represents the lowerseetion ofatelescopic stop-cock box. It consists of a cylindrical metal chamberof properlength, the lower portion, A,of which is made a proper diameter to provide a receptacle for the stop-cock R of the service-pipe, and its lower edge is notched out on opposite sides to allow it to set over the horizontally-extended service-pipe, and by engagement of these notches with the body ofthe pipe the lower section of the stop-box is prevented from turning around.

From the upper edge, a, ofthe enlarged portion A', which is located immediately above a service stop-cock, as just stated, the hollow body of the lower section, A, of the stop-cock box is contracted in diameter, and from this point is made cylindrical to its upper end.

At the upper extremity of the lower section, A, of the stop-cock box an inwardly-projecting flange, b, is formed integral with the shell of the hollow column, the central orifice thus aiiorded is adapted to receive a sliding tube, B, which is preferably made of wrought-iron.

Vithin the lower section, A, of the stopcoek box a longitudinal rib or projecting flange, C, is formed, which extends from the point a to the integral flange b, and its outer edge coincides with the peripheral free edge ofthis flange b.

The upper end of the tubular upper section, B, is cut with a thread to t the threaded depending ferrnle c of the dat cap-plate D, this plate being provided with twoholes, e, which are intended to accommodate the prongs 0f a forked wrench used to detach the cap-plate or screw it into place. The material of the lower end of the tube-section Bis bent outward on one side by a proper tool to produce an ear or lug, f, which is of such a comparative length to the diameter of the hollow lower section, A, that it will not prevent the tubesection B from sliding vertically, and yet will abut against the rib C, which will thus pre- 5 vent the complete rotation of the upper section, B, at any point of its sliding engagement with this rib.

In placing astop-ccck box th at is constructed as hereinbefore described, the location of which is generally near the curb of a street pavement, the lower end of the section A is placed s that its notched edge will straddle the service-pipe on each side of a stopfcock, It, as shown in Fig. 2.

A key-rod, g, of the stop-cock R is vertically extended toward thesurface of the ground, it being made of properlength to reach nearly to the surface of the pavement, said key-rod being located in the stop-cock box, as shown in Fig. 1.

The upper section, B, of the box is now adjusted for vertical height to suit the depth from the pavement surface to the service-pipe E, so that the cap-plate D will lie flat upon the pavement when the device is properly ad` Having fully described my invention, what I claim as new, and desire to secure by Letters Patent, is-

l. In a stop-cock box for water and gas pipes, the combination, with a lower section having a singleV longitudinal `rib therein and provided at its upper end with an opening, of an upper smaller section adapted to slide within the lower section and provided at its lower end with a single projection adapted to engage either face of the rib, substantially as set forth.

2. In a stop-cockwbox Yfor water and gas pipes, the combination, with a lower section havingalongitudinal ribtherein and provided at its upper end with a central opening, of the upper section, considerably smaller than the lower section, and fitting the opening in the top of said lower section, thereby forming a continuous flange or shoulder at the junction ofthe two sections, the said upper section being provided at its lower end with a lug or projection adapted to engage either face of the longitudinal rib of the lower section, and a screw-cap havinga depending screwthreaded flange adapted to engage the upper screwthreaded end of the upper section, substantially as set forth.

In testimony whereof Ihave signed this specilication in the presence oftwo subscrib ng wit nesses.

EDWARD DoUGLAs.

Witnesses:

JNO. M. DOUGLAS, FRED E. GIBBoNs. 

